Waldemar is a distinctive boys' name in United States, ranking #12137 in 2010 with 6 recorded births. The name reached its all-time peak in 1996 with 9 births ranking #6476. Since 1996, the popularity has decreased by 33.3%. In 2010, approximately 1 in every 319,735 boys born was named Waldemar. STABLE Recent data shows the name is currently stable.